Plate grinding device

Abstract

The utility model discloses a plate grinding device, which relates to the technical field of PPS (polyphenylene sulfite) processing, and comprises a grinding table, a scale groove, a belt grinder, a workpiece carrier plate, a height lifting piece and an adjustable elastic pressing piece. According to the device, a workpiece is placed on a workpiece carrying plate, then a driving lead screw is rotated to enable an inclined block to slide upwards along an inclined groove to a preset height, then the adjusting lead screw is rotated clockwise to enable a compression spring to be compressed, at the moment, a lifting hydraulic cylinder drives the whole belt type grinding machine to move downwards, a pressing head is made to press the surface of the workpiece, and the adjusting lead screw is rotated anticlockwise; the potential energy of the pressure spring is released to downwards extrude the pressure head, the initial compression amount of the pressure spring is adjusted according to the grinding thickness needed by machining, larger downward pressure is provided in the initial grinding stage, the grinding speed is higher, small pressure is provided in the later stage, excessive grinding is avoided, and therefore rapid grinding is achieved, milling is not needed, the cost is low, and the speed is high.

Description

A plate grinding device Technical Field

[0001] This utility model relates to the field of PPS processing technology, specifically to a plate grinding device. Background Technology

[0002] The main material of the needle fixture sheet for probes larger than 70um is PPS engineering plastic. However, there is a certain difference between the existing market supply specifications and the actual required specifications and dimensions. Therefore, before use, the thick PPS needs to be milled into the required specifications using a milling machine.

[0003] The original process was as follows: PPS sheet was placed on the milling machine table and fixed. Data was retrieved, and a 6.0mm milling cutter was installed with a milling depth of 0.02mm. This process was repeated until the thickness reached the standard. Finally, the milling cutter marks on the sheet were sanded off with 1000 grit sandpaper. However, in actual processing, it takes 10 hours to mill and sand a single PPS sheet. The cost of milling the sheet is greater than the cost of the material. Furthermore, the milling cutter marks must be sanded off after milling, otherwise the hole will be off-center when drilling. Therefore, a sheet grinding device is provided. Summary of the Invention

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plate grinding device, comprising:

[0005] Grinding table;

[0006] A belt grinder, which can be lifted and installed on the top of the grinding table, and a grinding belt is installed on the belt grinder;

[0007] A workpiece carrier plate is disposed in the grinding table and faces the belt grinder.

[0008] A height lifting component is disposed below the workpiece carrier plate and is used to drive the workpiece carrier plate to move vertically.

[0009] A graduated groove, formed on the grinding table, is used to display the height of the workpiece carrier plate;

[0010] An adjustable elastic pressure member is provided in the belt grinder to adjust the downward pressure between the lower side of the grinding belt and the surface of the workpiece carrier plate.

[0011] Preferably, a support is installed on the back of the grinding table, and the belt grinder is mounted on the support.

[0012] Preferably, the support includes a base and a support portion mounted on the base, and a lifting hydraulic cylinder is installed between the support portion and the base, and the belt grinder is fixedly mounted on the lower surface of the support portion.

[0013] Preferably, tension rollers are rotatably installed inside both ends of the belt grinder, the grinding belt is installed between the two sets of tension rollers, and a drive motor for driving the tension rollers to rotate is fixedly installed on one side of the support.

[0014] Preferably, the adjustable elastic pressing component includes a support base fixedly installed in the middle of the belt grinder, a pressing head suspended at the bottom of the support base, and a compression spring provided between the pressing head and the support base.

[0015] Preferably, positioning shafts are fixedly installed at the top of the four corners of the pressure head, and the positioning shafts are movably inserted into the support base.

[0016] Preferably, a connecting shaft is fixedly installed in the middle of the pressure head, the compression spring is movably sleeved on the bottom outer surface of the connecting shaft, the top of the compression spring abuts against the bottom of the support base, a wedge block is movably provided on the top outer surface of the connecting shaft, and an adjusting screw is threadedly connected to the support base, the adjusting screw being rotatably connected to the wedge block.

[0017] Preferably, the grinding table has a mounting recess in the middle facing the pressure head, and the height lifting member includes a mounting block movably disposed inside the mounting recess, with the workpiece carrier plate movably inserted into the top of the mounting block.

[0018] Preferably, the inner bottom of the assembly recess is provided with an inclined groove, an inclined block is slidably disposed at the inner bottom of the inclined groove, a drive screw is rotatably disposed in the inclined groove, and the drive screw is threadedly connected to the inclined block.

[0019] Preferably, optical axes are rotatably provided on both sides of the top of the assembly recess, and the polishing belt is in contact with the optical axes.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] This plate grinding device places the workpiece on a workpiece carrier plate, then rotates the drive screw to make the inclined block slide upward along the inclined groove, thereby lifting the workpiece carrier plate upward. The height of the workpiece is controlled by a scale groove. Then, by rotating the adjusting screw clockwise, the clamping spring is compressed, thereby adjusting the elastic potential energy of the clamping spring. At this time, the lifting hydraulic cylinder drives the entire belt grinding machine to move downward, so that the pressure head presses on the workpiece surface. Then, rotating the adjusting screw counterclockwise releases the potential energy of the clamping spring, pressing the pressure head downward. The initial compression of the clamping spring is adjusted according to the thickness to be ground, thereby changing the downward pressure of the pressure head during grinding. This provides greater downward pressure in the early stage of grinding, resulting in faster grinding speed, and provides less pressure in the later stage to avoid over-grinding. This achieves rapid grinding without milling, with low cost and high speed. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 is a schematic diagram of the overall front structure of this utility model;

[0024] Figure 2 is a schematic diagram of the overall rear structure of this utility model;

[0025] Figure 3 is an exploded view of the internal structure of the belt grinder of this utility model;

[0026] Figure 4 is an exploded view of the top structure inside the grinding table of this utility model;

[0027] Figure 5 is a schematic diagram of the top structure of the pressure head of this utility model.

[0028] In the diagram: 1. Grinding table; 12. Assembly recess; 13. Inclined groove; 14. Scale groove; 15. Optical axis; 2. Support component; 21. Base; 22. Support section; 23. Lifting hydraulic cylinder; 3. Belt grinder; 32. Drive motor; 33. Grinding belt; 4. Workpiece carrier plate; 5. Height lifting component; 51. Drive screw; 52. Inclined block; 53. Assembly block; 6. Adjustable elastic pressing component; 61. Support seat; 62. Press head; 63. Positioning shaft; 64. Connecting shaft; 65. Wedge block; 66. Compression spring; 67. Adjusting screw. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] This utility model provides a plate grinding device as shown in Figures 1 to 5, including a grinding table 1, a scale groove 14, a belt grinder 3, a workpiece carrier plate 4, a height lifting component 5, and an adjustable elastic pressing component 6. The belt grinder 3 is vertically mounted on the top of the grinding table 1, and a grinding belt 33 is installed on the belt grinder 3. The workpiece carrier plate 4 is disposed in the grinding table 1 and faces the belt grinder 3. The height lifting component 5 is disposed below the workpiece carrier plate 4 and is used to drive the workpiece carrier plate 4 to move vertically. The scale groove 14 is opened on the grinding table 1 and is used to display the height of the workpiece carrier plate 4. The adjustable elastic pressing component 6 is disposed in the belt grinder 3 and is used to adjust the downward pressure between the lower side of the grinding belt 33 and the surface of the workpiece carrier plate 4.

[0031] A support 2 is installed on the back of the grinding table 1, and the belt grinder 3 is installed on the support 2.

[0032] The support member 2 includes a base 21 and a support part 22 installed above the base 21, and a lifting hydraulic cylinder 23 is installed between the support part 22 and the base 21. The belt grinder 3 is fixedly installed on the lower surface of the support part 22.

[0033] Tensioning rollers are rotatably installed inside both ends of the belt grinder 3. The grinding belt 33 is installed between the two sets of tensioning rollers. A drive motor 32 for driving the tensioning rollers to rotate is fixedly installed on one side of the support part 22.

[0034] The adjustable elastic pressing component 6 includes a support base 61 fixedly installed in the middle of the belt grinder 3. A pressing head 62 is suspended at the bottom of the support base 61, and a compression spring 66 is provided between the pressing head 62 and the support base 61.

[0035] Positioning shafts 63 are fixedly installed at the top of the four corners of the pressure head 62, and the positioning shafts 63 are movably inserted into the support base 61.

[0036] A connecting shaft 64 is fixedly installed in the middle of the pressure head 62. A compression spring 66 is movably sleeved on the outer surface of the bottom end of the connecting shaft 64. The top end of the compression spring 66 abuts against the bottom of the support base 61. A wedge block 65 is movably set on the outer surface of the top end of the connecting shaft 64. An adjusting screw 67 is threadedly connected to the support base 61. The adjusting screw 67 is rotatably connected to the wedge block 65. By rotating the adjusting screw 67 clockwise, the wedge block 65 slides inside the support base 61, thereby pulling the connecting shaft 64 upward and causing the pressure head 62 to move upward. At this time, the compression spring 66 is compressed, thereby adjusting the elastic potential energy of the compression spring 66. At this time, the lifting hydraulic cylinder 23 drives the entire belt grinding machine 3 to move downward, so that the pressure head 62 presses against the surface of the workpiece. At this time, the adjusting screw 67 is rotated counterclockwise, causing the connecting shaft 64 to relax. At this time, the potential energy of the compression spring 66 is released, pressing the pressure head 62 downward. The initial compression amount of the compression spring 66 is adjusted according to the thickness required for grinding.

[0037] The grinding table 1 has an assembly recess 12 in the middle that faces the pressure head 62. The height lifting component 5 includes an assembly block 53 that is movably disposed inside the assembly recess 12. The workpiece carrier plate 4 is movably inserted into the top of the assembly block 53, which makes it convenient to change different workpiece carrier plates 4 according to different types of workpieces to be ground.

[0038] An inclined groove 13 is provided at the bottom of the mounting recess 12. An inclined block 52 is slidably disposed at the bottom of the inclined groove 13. A drive screw 51 is rotatably disposed in the inclined groove 13. The drive screw 51 is threadedly connected to the inclined block 52. The axial direction of the drive screw 51 is parallel to the bottom of the inclined groove 13. Thus, by rotating the drive screw 51, the inclined block 52 can slide up and down along the inclined groove 13.

[0039] Optical shafts 15 are rotatably mounted on both sides of the top of the mounting recess 12. The grinding belt 33 contacts the optical shafts 15 to prevent the grinding belt 33 from wearing with the grinding table 1.

[0040] Working principle: When using this device, the workpiece is first placed on the workpiece carrier plate 4, and then the drive screw 51 is rotated so that the inclined block 52 slides upward along the inclined groove 13, thereby lifting the workpiece carrier plate 4 upward, and the height of the workpiece is controlled by the scale groove 14.

[0041] Then, by rotating the adjusting screw 67 clockwise, the wedge block 65 slides inside the support seat 61, thereby pulling the connecting shaft 64 upward and causing the pressure head 62 to move upward. At this time, the clamping spring 66 is compressed, thereby adjusting the elastic potential energy of the clamping spring 66. Then, the lifting hydraulic cylinder 23 drives the entire belt grinding machine 3 to move downward, so that the pressure head 62 presses on the surface of the workpiece. Then, by rotating the adjusting screw 67 counterclockwise, the connecting shaft 64 is relaxed, and the potential energy of the clamping spring 66 is released, pressing the pressure head 62 downward. The initial compression of the clamping spring 66 is adjusted according to the thickness to be ground, thereby changing the downward pressure of the pressure head 62 during grinding. This provides greater downward pressure in the early stage of grinding, resulting in faster grinding speed, and provides less pressure in the later stage to avoid over-grinding.

[0042] Meanwhile, during grinding, the grinding belt 33 contacts the optical axis 15 to prevent wear between the grinding belt 33 and the grinding table 1.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plate grinding device, characterized in that, include: Grinding table (1); belt grinder (3), which is liftable and mounted on the top of the grinding table (1), and a grinding belt (33) is installed on the belt grinder (3); workpiece carrier plate (4), which is disposed in the grinding table (1) and faces the belt grinder (3); height lifting component (5), which is disposed below the workpiece carrier plate (4) and is used to drive the workpiece carrier plate (4) to move vertically; scale groove (14), which is opened on the grinding table (1) and is used to display the height of the workpiece carrier plate (4); adjustable elastic pressure The adjustable elastic pressing component (6) is installed in the belt grinder (3) to adjust the downward pressure between the lower side of the grinding belt (33) and the surface of the workpiece carrier plate (4). The adjustable elastic pressing component (6) includes a pressing head (62) movably installed in the middle of the grinding belt (33). A compression spring (66) is provided above the pressing head (62). A wedge block (65) is provided on the top of the compression spring (66) to adjust its compression amount, so that the pressing head (62) can press the bottom of the grinding belt (33) against the workpiece with a preset elastic pressure.

2. The plate grinding device according to claim 1, characterized in that, A support member (2) is installed on the back of the grinding table (1), and the belt grinder (3) is installed on the support member (2).

3. The plate grinding device according to claim 2, characterized in that, The support member (2) includes a base (21) and a support part (22) installed above the base (21), and a lifting hydraulic cylinder (23) is installed between the support part (22) and the base (21), and the belt grinder (3) is fixedly installed on the lower surface of the support part (22).

4. The plate grinding device according to claim 3, characterized in that, The belt grinder (3) has tension rollers rotatably installed inside both ends. The grinding belt (33) is installed between the two sets of tension rollers. A drive motor (32) for driving the tension rollers to rotate is fixedly installed on one side of the support (22).

5. The plate grinding device according to claim 1, characterized in that, The adjustable elastic pressing member (6) includes a support seat (61) fixedly installed in the middle of the belt grinder (3), the pressing head (62) is suspended at the bottom of the support seat (61), and the compression spring (66) is disposed between the pressing head (62) and the support seat (61).

6. The plate grinding device according to claim 5, characterized in that, Positioning shafts (63) are fixedly installed at the top of the four corners of the pressure head (62), and the positioning shafts (63) are movably inserted into the support base (61).

7. A plate grinding device according to claim 5, characterized in that, A connecting shaft (64) is fixedly installed in the middle of the pressure head (62). The compression spring (66) is movably sleeved on the bottom outer surface of the connecting shaft (64). The wedge block (65) is movably disposed on the top outer surface of the connecting shaft (64). An adjusting screw (67) is threadedly connected in the support seat (61). The adjusting screw (67) is rotatably connected to the wedge block (65).

8. A plate grinding device according to claim 5, characterized in that, The grinding table (1) has an assembly recess (12) in the middle facing the pressure head (62). The height lifting member (5) includes an assembly block (53) movably disposed inside the assembly recess (12). The workpiece carrier plate (4) is movably inserted into the top of the assembly block (53).

9. A plate grinding device according to claim 8, characterized in that, The inner bottom of the assembly recess (12) is provided with a sloping groove (13), and a sloping block (52) is slidably provided in the inner bottom of the sloping groove (13). A drive screw (51) is rotatably provided in the sloping groove (13), and the drive screw (51) is threadedly connected to the sloping block (52).

10. A plate grinding device according to claim 8, characterized in that, The top of both sides of the assembly recess (12) is rotatably provided with an optical axis (15), and the polishing belt (33) is in contact with the optical axis (15).

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